A kite shaped card-board is rotated about its line of symmetry (shown by dotted line). The solid figure so obtained has :

(i) one cone formed

(ii) two cones formed

(iii) three cones formed

1. only (ii)

2. only (iii)

3. both (i) and (iii)

4. neither (i) nor (iii)

A die is thrown once. The probability of getting a number divisible by both 3 and 5 is :

1. $\dfrac{1}{3}$

2. 0

3. $\dfrac{1}{2}$

4. 1

If PT is tangent to the circle at point T and PAB is secant of this circle. Then which of the following statements is true ?

1. PT² = PA × AB

2. PT² = TB × PA

3. PT² = PA × PB

4. PT² = PB × TB

In the given figure, the angle of depression of point D from point A is :

1. 55°

2. 35°

3. 45°

4. 60°